Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Hazardous Weather Conditions

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Overcast

78°F

26°C

Humidity	87%
Wind Speed	N 10 mph
Barometer	29.72 in (1005.6 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	12 Apr 4:54 am ChST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Agat GU

Flood Watch April 12, 06:00pm until April 15, 10:00am

Coastal Flood Watch April 13, 06:00am until April 15, 04:00pm

High Surf Advisory April 12, 05:50am until April 12, 06:00pm

High Surf Warning April 12, 06:00pm until April 16, 06:00pm

Click here for hazard details and duration

Flood Watch

Coastal Flood Watch

High Surf Advisory

High Surf Warning

High Surf Advisory April 12, 05:50am until April 12, 06:00pm
NOW until 6:00pm Sun
High Surf Advisory
Today
High: 85 °F
Breezy.
Isolated
Showers then
Scattered
Showers
Tonight
Low: 78 °F
Scattered
Showers and
Windy
Monday
High: 84 °F
Scattered
Showers and
Windy
Monday Night
Low: 79 °F
Heavy Rain
and Windy
Tuesday
High: 83 °F
Heavy Rain
and Windy
Tuesday Night
Low: 79 °F
Windy. Heavy
Rain then
Scattered
Showers
Wednesday
High: 84 °F
Scattered
Showers and
Windy
Wednesday Night
Low: 79 °F
Chance
Showers and
Windy

Detailed Forecast

Today

Scattered showers and thunderstorms after 3pm. Partly sunny, with a high near 85. Breezy, with a north northeast wind 23 to 28 mph, with gusts as high as 37 mph. Chance of precipitation is 50%.

Tonight

Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. Windy, with a north wind 29 to 33 mph, with gusts as high as 44 mph. Chance of precipitation is 50%.

Monday

Scattered showers and thunderstorms. Mostly cloudy, with a high near 84. Windy, with a north wind 34 to 41 mph, with gusts as high as 55 mph. Chance of precipitation is 50%.

Monday Night

Showers and thunderstorms likely before 2am, then showers and possibly a thunderstorm between 2am and 4am, then rain and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Low around 79. Windy, with a north wind 43 to 53 mph increasing to 70 to 80 mph. Winds could gust as high as 110 mph. Chance of precipitation is 90%.

Tuesday

Rain and possibly a thunderstorm before 4pm, then showers and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall. High near 83. Windy, with a northwest wind 100 to 110 mph becoming south southwest 65 to 75 mph. Winds could gust as high as 145 mph. Chance of precipitation is 90%.

Tuesday Night

Showers and possibly a thunderstorm, mainly before 11pm, then scattered showers and thunderstorms after 11pm. Some of the storms could produce heavy rainfall. Low around 79. Windy. Chance of precipitation is 90%.

Wednesday

Scattered showers and thunderstorms. Mostly cloudy, with a high near 84. Windy. Chance of precipitation is 50%.

Wednesday Night

Scattered showers and thunderstorms before 4am, then a chance of showers after 5am. Mostly cloudy, with a low around 79. Windy.

Thursday

A chance of showers. Partly sunny, with a high near 85. Breezy.

Thursday Night

A chance of showers. Mostly cloudy, with a low around 78. Breezy.

Friday

Mostly sunny, with a high near 86.

Friday Night

Partly cloudy, with a low around 79.